Yes, we deal with the same issue. It is a problem with the UPS.
You can reboot the SNMP card which may work for a while but the problem come back.
Only after powering down the UPS completely, then back on does it clear the issue.
The last fail cause will always populate with a value if there was ever a failure. As such it's not an optimal value for triggering an alert on, since it will likely always be triggered after the first time. I would recommend using Syslog instead for this type of alert.
At a minimum, I can tell you that your condition group (or) is unnecessary. If that's the entirety of the alert condition, then that line should be on the same level as the two conditions above it. E.G. no indent.
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